* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, sans-serif;
            background: #fafafc;
            color: #1e1e2f;
            line-height: 1.5;
            scroll-behavior: smooth;
        }

        /* container utility */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* header / navigation - modern with hamburger */
        .navbar {
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(8px);
            box-shadow: 0 1px 3px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .nav-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 1.7rem;
            font-weight: 700;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, #1e1e2f, #4f46e5);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        /* Hamburger menu styles */
        .menu-toggle {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            cursor: pointer;
            color: #1e1e2f;
            transition: 0.2s;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
        }
        .menu-toggle:hover {
            background: #f0f0f5;
        }
        
        .nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
            transition: all 0.3s ease;
        }
        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: #2d2d3a;
            transition: 0.2s;
            font-size: 1rem;
        }
        .nav-links a:hover {
            color: #4f46e5;
        }
        
        /* mobile responsive with hamburger */
        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 80%;
                max-width: 320px;
                height: calc(100vh - 70px);
                background: white;
                flex-direction: column;
                gap: 0;
                padding: 2rem 0;
                box-shadow: 2px 0 20px rgba(0,0,0,0.08);
                transition: 0.3s ease-in-out;
                z-index: 999;
                border-radius: 0 24px 24px 0;
            }
            .nav-links.active {
                left: 0;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links a {
                display: block;
                padding: 1rem 2rem;
                font-size: 1.1rem;
                border-left: 3px solid transparent;
            }
            .nav-links a:hover {
                background: #f8f7ff;
                border-left-color: #4f46e5;
                color: #4f46e5;
            }
            .hero {
                flex-direction: column;
                text-align: center;
                padding-top: 30px;
            }
            .hero-content p {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-img {
                margin-top: 20px;
            }
            .btn-group {
                justify-content: center;
            }
            .section-title:after {
                left: 50%;
                transform: translateX(-50%);
                width: 60px;
            }
            .section-title {
                text-align: center;
                display: block;
            }
            .about-wrap {
                text-align: center;
            }
        }
        
        @media (max-width: 480px) {
            .container {
                padding: 0 20px;
            }
            .hero-content h1 {
                font-size: 2.3rem;
            }
            .projects-grid {
                grid-template-columns: 1fr;
            }
            .contact-info {
                justify-content: center;
            }
        }

        /* HERO section */
        .hero {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            padding: 60px 0 40px;
        }
        .hero-content h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            color: #111;
        }
        .hero-highlight {
            color: #4f46e5;
            border-bottom: 3px solid #e0e7ff;
        }
        .hero-content p {
            font-size: 1.15rem;
            color: #4a4a5a;
            margin: 20px 0 28px;
            max-width: 550px;
        }
        .btn-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            text-decoration: none;
            transition: 0.2s;
            font-size: 0.95rem;
            cursor: pointer;
        }
        .btn-primary {
            background: #4f46e5;
            color: white;
            box-shadow: 0 4px 8px rgba(79,70,229,0.2);
            border: none;
        }
        .btn-primary:hover {
            background: #4338ca;
            transform: translateY(-2px);
        }
        .btn-outline {
            border: 1.5px solid #cbd5e1;
            color: #1f2937;
            background: white;
        }
        .btn-outline:hover {
            border-color: #4f46e5;
            color: #4f46e5;
            background: #f5f3ff;
        }
        .hero-img {
            width: 260px;
            height: 315px;
            background: linear-gradient(145deg, #e9eaff, #ffffff);
            border-radius: 50%;
            background-size: cover;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 20px 35px -12px rgba(0,0,0,0.1);
        }
        .hero-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 50%;
        }

        /* section styles */
        .section {
            padding: 70px 0;
            border-bottom: 1px solid #edeef2;
        }
        .section:last-child {
            border-bottom: none;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 2rem;
            position: relative;
            display: inline-block;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 50%;
            height: 3px;
            background: #4f46e5;
            border-radius: 4px;
        }
        
        /* projects grid */
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 20px;
        }
        .project-card {
            background: white;
            border-radius: 24px;
            padding: 24px;
            transition: all 0.25s;
            box-shadow: 0 5px 18px rgba(0,0,0,0.04);
            border: 1px solid #eff0f4;
        }
        .project-card:hover {
            cursor:pointer;
            transform: translateY(-6px);
            box-shadow: 0 20px 30px -12px rgba(0,0,0,0.1);
            border-color: #dddff5;
        }
        .project-icon {
            font-size: 2.2rem;
            color: #4f46e5;
            margin-bottom: 16px;
        }
        .project-card h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
            font-weight: 700;
            color: black;
        }
      
        .project-card p {
            color: #5b5b6e;
            margin-bottom: 18px;
            font-size: 0.9rem;
            line-height: 1.5;
        }
        .project-tag {
            display: inline-block;
            background: #f1f0ff;
            color: #4f46e5;
            padding: 5px 12px;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        
        /* skills chips */
        .skills-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 10px;
        }
        .skill-chip {
            background: white;
            border: 1px solid #e2e8f0;
            padding: 8px 20px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: 0.1s;
            color: #1f2937;
        }
        .skill-chip i {
            margin-right: 8px;
            color: #4f46e5;
        }
        
        /* Awards & Certifications Section - NEW */
        .awards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
            margin-top: 20px;
        }
        .award-card {
            background: white;
            border-radius: 24px;
            padding: 24px;
            transition: all 0.25s;
            box-shadow: 0 5px 15px rgba(0,0,0,0.03);
            border: 1px solid #eff0f4;
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }
        .award-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 15px 25px -10px rgba(79,70,229,0.12);
            border-color: #e0e4ff;
        }
        .award-icon {
            font-size: 2.2rem;
            min-width: 55px;
            height: 55px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #4f46e5;
        }
        .award-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: black;
        }
        .award-issuer {
            font-size: 0.8rem;
            color: #4f46e5;
            font-weight: 600;
            margin-bottom: 8px;
            display: inline-block;
            background: #f0efff;
            padding: 2px 10px;
            border-radius: 30px;
        }
        .award-content p {
            color: #5b5b6e;
            font-size: 0.85rem;
            line-height: 1.45;
            margin-top: 8px;
        }
        .award-date {
            font-size: 0.7rem;
            color: #8b8ba3;
            margin-top: 10px;
            display: block;
        }
        
        /* about section */
        .about-wrap {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }
        .about-text {
            flex: 2;
        }
        .about-text p {
            margin-bottom: 16px;
            font-size: 1.05rem;
            color: #2c2c3a;
        }
        
        /* contact */
        .contact-info {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin: 30px 0 20px;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            color: black;
            background: white;
            padding: 12px 24px;
            border-radius: 60px;
            box-shadow: 0 2px 6px rgba(0,0,0,0.02);
            border: 1px solid #edf2f7;
            transition: 0.2s;
        }
        .contact-item:hover {
            border-color: #cbd5ff;
            transform: translateY(-2px);
        }
        .contact-item i {
            font-size: 1.4rem;
            color: #4f46e5;
        }
        .contact-item span {
            font-weight: 500;
        }
        footer {
            text-align: center;
            padding: 30px 0 40px;
            color: #6b7280;
            font-size: 0.85rem;
        }
        hr {
            margin: 20px 0;
            border: none;
            border-top: 1px solid #eef2f6;
        }
        a {
            text-decoration: none;
        }
        
        /* overlay for mobile menu */
        .menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.3);
            backdrop-filter: blur(2px);
            z-index: 998;
            opacity: 0;
            visibility: hidden;
            transition: 0.2s;
        }
        .menu-overlay.active {
            opacity: 1;
            visibility: visible;
        }